Time speed-indicating device.



PATENTED FEB. 18, 1908.

E. J. HALL, DEGD. A. L mm, BXEGUTRIX TIME SPEED INDIGATING DEVICE.

APPLICATION FILED AUG. 14,1905.

ll/iinesses:

EDWJN J. HALL, OF WALTHAM, MASSAGHUSE" EDWIN Z. HALL,

Tm SPEEB EEEB No. 879,540. Speeifiwtion Application filed August To all whom it may concern."

Be it known that I, EDWIN J. HALL, of \Valtham, county of Middlesex, State of Massachusetts, have invented an Improve .I nent in Time Speed-Indicating Devices, of which the following description, in conne with the accompanying drawings, spr cation, like characters on the drawings re senting like parts. i

- This invention relates to time speed. ind? cating devices, and has for its object construct'an indicator whereby the maxnnum rate of speed attained while traveling a.- L determined distance, as for instance, In or fraction thereof or multiple thereof in a be indicated; also to arrange the indicating mechanism, in connection or combination with an ordinary clock movement whereby the time will be indicated as well as the speed.

The invention consists essentiall' in an element driven at a Variable speed by a mov ing part of an automobile and an element drlven at a constant speed by a clock movement, an actuator operated by two elements and indicating mechanism operated by said actuator.

Figure 1 shows in plan View a time speed indicator embodying this invention. Fig. '2 is a verticalsection of the time speed indicator shown in Fig. 1, taken on the dotted line 2-2. Fig," 3is a plan view showing the constantly driven'element and the variable driven element and'a part of the actuator for the indicatingmechanism. Fig. 4 is a plan. view showing the a'c'tuator for the indicating mechanism and pinion engaging it. Fig. 5 is a plan view showing one of the gears of the indicating mechanism'and adjacent parts, Fig. -6 is a plan view showing in dotted lines the indicating disk and locking device therefor, and tripping device for said locking device. Fig. 7 is a detail to be referred to.

a represents the usual center arbor otan ordinary watch or clock movement, which latter is not herein shown but is contained in the shell or case a and a is the minute hand. 1) represents the usual cannon pinion on the center arbor which engages apinion Z) connected with the pinion 5 which engages a 50 inion b on a sleeve b bearing the hour hand represents the usual clock dial over which the hands a and b move. So much of my device is of any ordinary construction and may be what is usually termed a carriage 55 clock.

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its ciiculai pate at 1a for any 0 A pini a stantly a. variable r. gages the turned by junctivelv tive to es gear 6 is r ion constan to travel ar' onnd is revolving "h by both gears (Z a:

C! in be moved ing upon the relatii The pinion is projecting down toothed gear g it freely on the center a g is moved along gear 'g will be c member or ge A 15111. 'i'he t g secured. to one of the stationary plates of the frame, and said pinion g engages a pinion g mounted loosely on a stud 51, secured to a plate 9 which is loosely mounted on the stud 9* so as to swing thereon, see Fig. Z, and said pinion g is rigidly connected to a pinion 9 so that said pinion gi will revolve with the pinion 9 The pinion 9 engages a toothed gear h, which is loosely mounted on the sleeve bearing the hour hand, and said pinion is adapted to be moved into and out or engagement with said gear h at certain times. To accomplish this result the swinging plate g has an extension or arm g which is adapted to be engaged by an arm 5 projecting from a shaft 41, to which a pinion i is secured which engages the external teeth of the variable driven gear e, and once during each revolution of said pinion i the arm i strikes the extension g of the plate 9 and moves it to disengage the pinion g from the toothed gear h. As the variable driven gear e makes one revolution for a predetermined distance traveled by the automobile, as for instance, for twenty miles the arm i will be moved to cause the pinion g to disengage the gear h, at the end of each mile or quarter mile or any other fractional part of the predetermined distance. While the pinion 7 is in engagement with the gear 71 it revolves said gear, but as soon as it is disengaged therefrom the gear h is free. The gear h as herein shown has attached to it one end of a spring h, see Fig. 5, the other end of which is attached to a fixed point, as for instance, to one of the stationary plates of the frame, and said spring serves as a restoring spring for the gear 72, acting to return said gear h to its starting point each time it is disengaged. The gear it has on it a stop pin h which, at the starting point, engages a stop pin 7L3 on the frame plate, and as the gear h is moved by the pinion g the spring 71 will be wound and the stop pin 7L2 will be moved away from. the sto pin 7L but when disengaged said gear wi be returned immediately to its starting point. The gear it will be moved successively variable distances according to the movement of the main actuating gear'g, but each time it will be returned to its starting point.

A disk 7' is mounted loosely on the sleeve bearing the hour hand, whichhas on its upper face a series of indicating marks and numerals to indicate the sneed, as for instance, the miles per hour, and said disk oceupiesa position back of the dial plate of the clock, and the indicating marks and numerals thereon -are visible through an opening j in said dial plate. The disk has provision for a spring 1' one end of which is attached to the disk and the other end to the gear 71, and said disk has a stop pin 3' which is engaged by the stop pin k on the gear 71, said stop pin if being suitably extended for this purpose.

erases Thus thedisk j is adapted to be moved by the gear in The disk 1; is formed or provided with a toothed edge see 6 adapted to be engaged by a pawl 3 pivoted to the frame plate and normally held pressed into engagement with the teeth on the disk by a spring j. As the disk is advanced by the gear h the pawl acts to hold it at the maximum point of advancement while the gear h returns to its starting point. The pawl i has an extension 3 adapted to be engaged by an arm which is secured to the shaft i, being similar to the arm i thereon, and by said arm 1 the pawl is moved out of engagement with the disk, and when said disk is thus released the spring acts to return it until its stop pin 3' engages the stop pin T he operation of the indicatmg portion 0 my device is as follows. As the actuating gear 9' is rotated the gear h will be advanced. by the pinion g until said pinion is disengaged therefrom, and the disk will be correspondingly advanced, then as soon as the pinion g disengages the gear h the latter returns immediately to its starting point, but the disk j is heldin its advanced position by the pawl and indicates the maximum miles per hour or rate of speed traveled during the iirst mile or other predetermined distance to which the device is set or adjusted; then the pinion g is immediately moved into engagement with the gear h and again operates to advance said gear 7:, and the stop pin it thereon is moved toward the stop pin onlhe disk j, and if a higher rate of speed is attained. during the second mile the pin 7L2 Will engage the pin 1' and advance the disk 1', but if a lower rate of speed is attained then the pin 7L2 will approach, but will not engage the pin f, and when the second mile or other predetermined distance is completed and while the gear h is still held at its maximum Joint of advancement, the disk will be released by a movement of the )awl 3 and the pin j carried by the disk will move into engagement with the pin 712 on the gear h and then the pawl is released and again permitted to engage the disk j to hold it, and then the gear FL is disengaged and permitted to return to itsstarting point. Thus the indicating disk j always shows the maximum rate of speed traveled during the previous mile or other predetermined distance. 7

Having thus described my invention, what clam-i new and desire to secure by Letters both said constantly and variably driven gears, substantially as described; v

2. In a speed indicator, the combination With the center arbor of a clock movementa toothed gear secured thereto and thereby I driven at a constant speed, a ring gear disposed concentric to said toothed gear which is adapted to be driven at a variable speed indicating roeol'ianisrn, an actuating member for said indicating mechanism bearing a pinion Whiclrengages both said comtantIy and variably driven gears, substantially as described.

3. In a speed indicator, the combination or a ring gear .dapted'to be'driv'en at avari able speed, a constantly driven gear within said ring gear, speed indicating mechanism and an actuator for said indicating niechaie ianism and an actuating l I for saidinoicating mechanism bearii a pinion which engages both said variaoly and constantly driven gears, substantially as described.

a speed indicator, the combination oi a toothed gear secured thereto and therei t iconstant speed, a gear adapted to be dive/n at a variable speed, an actuating gear turning on said center arbor bearing a pinion. which engages both said constantly and variably driven gears, an indicating dislr' also turning on said center arbor, and insane for operating it Wnich is operated by said actuating gear, substantially as desc ibcd. 6. In a speed indicator, the combination with the center arbor of a clock movement, of a toothed gear secured thereto and thereby driven at a constant speed, a adapted to be driven-at a variable speed, a pinion engaging both said constantly and variably driven gears, a rotatable member bearing sa d pinion, an indicating disk, and means turning it on its axis operated by said rotatable member, substantially as described.

7. lna speed indicator, the combination with the center arbor of a clock movement, of a toothed gear secured thereto and thereby driven at a constant speed, a gear adapted to be driven at a variable speed, a pinion engaging both said constantly and variably driven gears, a rotatable member bearing said pinion, an indicating disk, an operatln device for said disk, means operated. by s'air.

rotatable member for moving said operating device forward variable'distances, substai tially described.

e1. ,1 a speed indicator, the combination with the center arbor of a clock movement,

ith 1e center arbor of a clock movement, L

of a toothed gear secured thereto and thereby driven at a constant speed, a gear adapted to be driven at a variable speed, a j lion engaging both said constantly and variably (Q's-en gears a rotatable member bearing "said pinion, an indicating dish, an operating means operated by said of a toothed gear secured thereto and there 0 by driven at a constant speed, a gear adapted to be driven at a vari lilo speed, a pinion engaging botli'said constantly dri-a'" i gears, a. rotatable said pinion, an "hosting d" turning it on its axi" operr table member, locking do b ice for said in- (heating; disk and a ti oping device for said locking device, snbsta *1 ntially as descr 10. In a speed inr motor, the comb with the center arbor of a clock movenie of a toothed gear secured thereto and tli driven a con tant speed, a gear adaptc be driven a variable mod, a pinion o ing both said constantly and variably d3. gears, rotatable member bearing said pinion, an indicating disk, means operated by said rotatable member for turning it on axis in one direction, a locking device for said dish, a tripping deviceior said locking device and a restoring spring for said disk, substan tially as described.

11. In a speed indicator, thecombinati n, with the center arbor of a clock movement, of a toothed gear secured thereto and thereby driven at a constant speed, a gear adapted to be (lIlVGIl at a varlablespeed, a pinion engagingbotb. said constantly and variably driven gears, a rotatable member bearing said pin- 1011, an indicating disk, an operatir device for said disk, means operated by said rotatable member for moving o, ting device forward variable dis*"es, e d means for disconnecting said opera ng device from said rotatable member, and means or return-- ing said operating device to its st: g point, substantially as described:

12. In aspeed indicator, the cornbi ation with the center arbor of a clock movement, of a toothed gear secured thereto and thereby driven at a constant speed, a gear adapted to be driven at a variable speed, a pinion engaging both said constantly and variably driven gears, a rotatable member bearing said pinion, an indicating disk, a locking device for said dish, a tripping device for said locking device, a restoring spring for said disk, on operating cevice for said disk, means operated by said rotatable member for moving said operating device forward variable distances, means for disconnecting it from said rotatable inember and means for returning it to its starting point, substantially as described.

13. In a speed indicator, an indicating disk, a reciprocating operating-device for said disk, means for moving said operating device in one direction variable distances, means for disconnecting said operating-dc vice from said actuating means, and means for returning theoperating-device, substantially as described.

lat. In a speed indicator, an indicating disk, an operating device for said disk, an actuating member for moving said operatingdevice variable distances, means for disconnecting said operating-device from said actuating member, means for returning said operating-device when disengaged, a constantly driven gear, a gear adapted to be driven a; a variable speed and a pinion interposed between said constantly and variably driven gears, which is borne by. said actuating member, substantially as described. 15. in a speed indicator, an indicating d'. a locking device fo said disk, a tripping device for said locking device, means for returning said indicating device when released, an operating device for said disk, an actuati member for moving said operating device liable. distances, means for disconnecting said operating device from said actuating member, means for returning said operating device when disengaged, a constantly driven gear, a gear adapted to be driven at a variable speed, and apinion interposed between said constantly and variably driven gears, which borne by said actuating member, substantially as described.

In a speed indicator, the combination with the center arbor ofa clock movement, of a toothed gear secured thereto and thereby driven at a constant speed, a gear adapted to be driven at a variable speed, a pinion engaging both said constantly and variably driven gears, a rotatable member bearing said pinion, an indicating disk, and means for turning it on its axis operated by said rotatable member, a-locking device for said ing both said constantly and variably driven gears, a rotatable member bearing said pinion, an indicating disk, an operating device for said disk, means operated by said rotatable member for moving said operating device forward variable distances, and means operated by the variably driven gear for dis connecting said operating device from said rotatable member, substantially as described.

18. In a speed indicator, the combination of a constantly driven gear, a variably driven gear, a rotatable member bearing .a pinion which engages both said constantly and variably driven gears, an indicating disk operated by said rotatable member, and means operated by the variably driven gear for repeatedly disconnecting the indicating disk from the rotatable member, and means for restoring said indicating disk, substantially as described.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

' EDWIN J. HALL.

\Vitnesses EDWARD P. STARBUCK, CHARLES H. LEIGHTON. 

